D121212122132313231323233231323223313233313231211113313233313233323221   >>    D12121212213231323132323323132322331323331323121111331323331323332322   <<    D121212122132313231323233231323223313233313231211113313233313233323223   >>      D121212122132313231323233231323223313233313231211113313233313233323222   >>